Electric lock



Sept. 4, 1923. 1,467,048

G. M. LIVESAY ELECTRIC LOCK Filed Sept. 18. 1922 4 Sheets-Sheet 1 Q GMLjv-esbf Sept 4, 1923. 1,467,048

G. M. LlVESAY ELECTRI C LOCK Filed Sept. 18. 1.922 4 Sheets-Sheet 2 Sept. 4, 1923. v y 1,467,048

G. M. LIVESAY ELECTRJ C LOCK Filed Sept. 18, 1922 4 Sheets-Sheet 5 gnue'ntoz G. M141 teddy Sept. 4, 1923. 1,467,048 I G. M. LIVESAY ELECTRIC LOCK Filed Sept. 18, 1922 4 Sheets-Sheet 4 gmntoz- Patented Sept. 4, 1923.

UNITED. STATES PATENT OFFICE.

GEORGE E. LIVISAY, 0] ASHLEY, ILLINOIS.

' ELECTRIC LOCK.

Application filed September 18, 1922. Serial No. 588,980.

To all whom it may concern Be it known that I, GEORGE M. LIVESAY, citizen of the United States, residing at Ashley, in the county of Washington and State of Illinois, hai e invented certain new and useful Improvements in Electric Locks, of which the following. is a specification.

The present invention relates to electric looks as applied to the ignition system for internal combustionengines, and more particularly to looks of this character for use on automobiles.

The object of the invention is .to provide a key for opening and closing the circuits to the engine cylinders and to arrange the wiring of the different circuits in such amanner that the insertion of a particular ,key and turning of the same will close'the gaps formed in each circuit preliminary to starting the engine andthat the removal of the key will cause a break to be formed in each of the ignition circuits making it impossi- 'ble to start the engine without this key in position. 1

Another object of the invention is to arrange the primaryand secondary windings of the spark coil, so that a break also is formed therein, which break is bridged upon the insertion and turnin of the key, in this manner roviding a ouble safety against the starting ofthe machine by any unauthorized person.

.By arranging the wiring in the key box in different manner,difl'erent keys will have to ,tained.

be usedfor difierent engines and by arranging the conductors in the keys in difi'erent directions, still greater variation in the construction of the locks and keys may be ob- One embodiment of the invention is illustrated in the accompanying drawings and,

Fig. 1 represents a rspective view of. the

' wiring in the insulating block of the lock,

the insulation material having been shown as transparent for-the sake of clearness;

Fig. 2 is a horizontal sectionof the lock; Fig. 3, is a vertical section taken along line 3- -3 of Fig. 2;

Fig. 4 is a longitudinal section along line 44 of Fig. 2;

Fig. 5 is an axial section of a key;

' 6 is aperspectlve view of an oscillat" in contacting member offa lock;

ig. 7 is a dia ammatic view of the primary and secon ary windings of the spark.

Fig. 8 is a fragmentary perspective view ofa dash board of an; automobile with the electric lock attached;

Fig. 9 is a perspective view of a cover plate for the box containing the electric lock, and I Fig. 10 is a similar view partly in section 15 running the entire length of the block and situated partly in the lower half 14 thereof and partly in the upper half 13. Adjacent to one end of said chamber is provided a keyhole 16 in plate 11 of the casin 10. The end plate of the casing is provide with two or more ears 17 having apertures 18 for attaching the casing to the dashboard of an 'auto'mobile'and bolts or screws 19 running through the top and bottom of the casing engaging in corres in the block 13, 14. The e hole 16 has an upwardly directed slot 9 suitable for guiding the bits 20 arranged on one side of the stem 21 of the key. The end of the key has a recess 22 adapted to engage with the stud 23 provided in the inner end of the casing 10 at the bottom of the chamber 15. This stud is intended for guiding the key when the same is turned in the chamber and adjacent to each bit 20, with the key-inserted in nding openings the chamber, is furnished a transverse recess} 2 24 see Figure 3 to permit the turning of the key. The keyis provided with a bow or handle 25 at its outer end and in the casing is carried a sliding latch 26 actuated by a spring 27'; the function of this latch being to "retain the key in its turned position as indicated in Figs. 3' and 4, when the latch 26 engages the notch 28-on the under side of the key. This prevents the key from turning loose, when in its operative position, while the engine is running. The turning of the key one quarter turn' until the bits register with the slot 19 will immediately cut ofi the current and stop the engine.

Referring particularl to Fig. 5 short pieces of, wire 30 run iametrically across the stem 21 of the key and through the bits 20. These wires are intended to bridge the gaps formed in the conductors of the circuits and for a six cylinder engine, there are preferably three bits 20 as shown in this figure, 1 each bit containing two wires, which will dock, the terminals 32, arranged in two rows of three terminals each, are shown on one side of the casing, each terminal connecting with the distributors and individual termi nals in the wiring for each cylinder of the engine. On the opposite side of the lock other terminals 34 are furnished for wirings 35, also arranged intwo rows of'three each with individual wire for each cylinder. In the diagram shown in these figures short conductors 36 and 37 lead from their respective terminals on both sides toward the chamber and terminate in the wall opposite the corresponding contactpoints in the stem and bits of the key. In these diagrams the terminals on the distributor side of the casing are all denoted by letters A to F inclusive, and theterminals on the engine side of the casin are denoted by letters a to f. The 'COIlIlGCtlOIlS are laid in such a manner that terminal A connects with terminal a, terminal B with b, C with c and so on. It will thus be seen that with the key turned round in the position indicated in thisfigure,

the wiring on each side of the box will be connected in proper order.

The spark coil 53, which is best shown in Figs. 3 and 4 and diagrammatically in Fig. 7 consists of'a prima winding 40 and a secondary winding 41 lioth being properly grounded. In the conductor 42*, 42 of the primary winding a break is formed as at 43 and this break is actuated by a so-called cut-out. One end 42 of the conductor 42 leads to the contact plate 45, see Figs. 3 and 7 which has preferably a contact oint 44 of rare metal .such as platinum. T e other end 42 of the conductor 42 is likewise secured to a plate 46, which carries-a spring 47 being firmly. attached to block 13 and having' a pad 48 at its free end located oppositel to the contact point 44, the spring 47 ten ing to hold the pad 48 away from the contact pointf'thereby forming the cutout. At 49 is fulcrumed, in the upper half 13 of the? block, an oscillating member 50 preferably made of insulating material such as bakelite. The lower end of this oscillatturned down, the oscillating member 50 is swung outwardly causing the spring 51 to push the cut-off 47 and 48 in the right hand direction, thereby closing the contacts and completing the circuit in the break 43 of the spark coil.

It will now be seen that individual spark plugs for the cylinders of the engine will be operated in proper order and. the engine may be started.

By inserting pins in the blocks 13 and 14, which project into the recess for the bits, and furnishing corresponding slots in the latter, still further variation in the shape and construction of the keys may be obtained. In this manner assuring against tampering with the machinery and attempting to start it with a key, that will not fit the lock. 4

In Fig. 10 is shown the box or casing 10 in which the insulating blocks 13 and 14 containing the principal details of the lock are assembled. At 62' are shown longitudinal slots in the box to accommodate the wiring and terminals 32 and 34 respectively and to make the assembling easy. }At' 63 is shown a series of apertures provided for the conductors running to battery, ground and timer. and at 64 are shown other apertures or screw holes for the screws 19 with which the insulating blocks 13 and 14 are secured -66 is shownan aperture of a supporting screw for the coil and a similar aperture 67 is provided in the oppositeend of the box or casing 10 for the same purpose.

Instead of placing the wiring in the key in one transverse planethereof as seen in Fig. 5, the wires may be laid in the key in two planes at right angles to each other. In other words each wire is bent so that its angles are spaced 90 apart in the outer face of the key.

The-coil is positioned in such a manner in the upper insulating block 13, so that it may be easily removed provided it is found necessary to replace the same.

Having thus described the invention, what is claimed as new is:

1'. A look for. electric ignition circuits comprising a block of insulating material, a spark coil enclosed therein and provided with a cut out element, said block having a chamber, the conductors of said'circuits terminating in the wall of the chamber forming a gap in each circuit, a switch member of insulating material mounted to turn in said chamber, wiring in said switch member adapted tobridge the respective gaps with the member in the turned on position, the latter simultaneously closing said cut out. v p

2. A look for electric ignition circuits comprising a block of insulating material, a spark coil enclosed therein and prdvided with a cut out element,said block having a chamber, the conductors of said circuits terminating in the wall of the chamber forming a gap in each circuit, a switch member of insulating material mounted to turn in said chamber, Wirin in said switch member adapted to bridge t e respective gaps with the member in the turned on position, the latter simultaneously closing said out out, said switch member being constructed as a removable key.

3. A lock for electric i ition circuits comprising a block of insu atin material, a spark coil enclosed therein an provided with a cut out element, said block having a chamber, the conductors of said circuits terminating in thewall of the chamber forming a gap in each circuit, a switch member of insulating material mounted to turn in said chamber, wiring in said switch member adapted to bridge the respective gaps with the member in the turned on position, the latter simultaneously closing said out out, said switch member being constructed as a removable key having a plurality ofbits, said wiring crossing the stem of the key with ends exposed respectively in said bits and the opposite side face of the stem in order to register with the respective conductors.

4. A lock for electric ignition circuits com' rising a block of insulating material, a spar coil enclosed therein and provided with a cut out element, said block having a-chamber, the conductors of said circuits terminating in the wall of the chamber forming a gap in each circuit a switch member of insulating material mounted to turn in said chamber, wiring in said switch member adapted to bridge the respective gaps with the member in the turned on position, the latter simultaneously closing said cut out said switch -member being constructed as a removable key; a casing enclosing said block having a keyhole opposite said chamber and alatch in said casing adapted to retain. said key in posi- ,tion.

5. A lock for electric ignition circuits comprising a block of insulating material,

a spark coil enclosed therein and provided with a cut out element, said block having a chamber, the conductors of said circuits terminating in the wall of the chamber forming a gap in each circuit, a switch member of insulating material mounted to turn in said chamber, wiring in said switch member adapted to bridge the respective gaps with the member in the turned on position, the latter simultaneously closing said out out, said switch member being constructed as a removable ke having a plurality of bits, said spark coi being provided with primary and secondary windings, a conductor for said primary winding having a break, a contact point for each end of the break, one of said contact pointswith a cut out element, said block having a chamber, the conductors of said circuits terminating in the wall of the chamber forming a gap in each circuit, a switch member of insulating material mounted to turn in said chamber, wiring in said switch mem-- ber adapted to bridge the respective gaps with the member in the turned on position, the latter simultaneously closing said cut out, said switch member being constructed as a removable key h avin a plurality of bits, said wiring crossing t e stem of the key with ends exposed respectively in said bits and the opposite side face of the stem in order to register with the respective conductors; said spark coil being provided with primary and secondary windings, a conductor for said primarywinding having a break, a contact point for each end of the break, one of said contact points forming the" said chamber, wirin in saidswitch member I adapted to bridge t e res ctive gaps with the member in the turn on position, the latter simultaneously closing said out out, said switch member being constructed as a removable key, having a pluralit of bits, said wiring crossing the stem 0 with ends exposed respectively'in said hits the key and the opposite side face of the stem in order to register with the respective conductors; said spark coil being provided with. primary and secondary windings, a conductor for said primary winding having a break, a contact point for each end of the break, one of said contact'points forming the out out standing normally open and an oscillating member adjacent said cut out and adapted to be actuated by one of said bits for closing the cut out; a casing enclosing said block having a key hole opposite said chamberand a latch in said casing adapted to retain said key in position.

8. A look for electric ignition circuits com prising a block of insulating material and provided with a chamber, a spark coil rovided with a cut-out element, the con uctors of said circuits terminating in the wall of the chamber forming a gap in each circuit, and a switch member mounted to turn in said chamber and adapted to bridge the respective gaps, with said switch member in turned on position, said switch member simultaneously closing said cut-out.

In testimony whereof I afiix my signature.

DR. GEORGE M. 'LIVESAY. 1. 5. 

